The Central Bank of Brazil has expanded the coverage of its Regional Economic Activity Index, or IBCR, to include four additional states: Maranhão, Mato Grosso, Mato Grosso do Sul and Rio Grande do Norte. The monthly indicator is now published for 17 states, alongside the five Brazilian regions, widening the index’s state-level coverage and analytical reach. The IBCR is used by the central bank to monitor economic conditions across regions and states through a monthly aggregation of data from agriculture, industry and services. The addition of the four states followed an increase in the availability of primary data with state-level breakdowns, particularly from the Brazilian Institute of Geography and Statistics, which allowed the bank to reassess the feasibility of calculating the indicator for those jurisdictions. The index was first published for regional series in 2009, with series starting in 2003, and is released 45 to 60 days after the end of the reference month. The Central Bank of Brazil also said its annual Regional Bulletin covering 2025 data will be released in May and will include a section on the addition of the four new states and a methodological revision.